摘要:
A microelectronic package comprising a device substrate having first and second opposing surfaces and comprising a plurality of microelectronic devices. The microelectronic package also includes a plurality of electrically conductive members coupled to corresponding ones of the plurality of microelectronics device and extending away from the first surface. A thermally conductive layer is located on the second surface of the device substrate, and a package substrate is coupled to the device substrate, the package substrate having a plurality of electrically conductive traces coupled to corresponding ones of the plurality of electrically conductive members.
摘要:
A reusable burn-in/test fixture for discrete TAB die consists of two halves. The first half of the test fixture contains cavity in which die is inserted. When the two halves are assembled, the fixture establishes electrical contact with the die and with a burn-in oven. The test fixture need not be opened until the burn-in and electrical test are completed. The fixture permits the die to be characterized prior to assembly.
摘要:
A reusable burn-in/test fixture for discrete TAB die consists of two halves. The first half of the test fixture contains cavity in which die is inserted. When the two halves are assembled, the fixture establishes electrical contact with the die and with a burn-in oven. The test fixture need not be opened until the burn-in and electrical test are completed. The fixture permits the die to be characterized prior to assembly.
摘要:
A method for fabricating a wafer level chip scale package with discrete package encapsulation and devices formed by the method are described. A dry film photoresist layer is first deposited on top of a pre-processed wafer complete with a plurality of bond pads and an I/O redistribution metal layer. The dry film photoresist layer is then patterned to form a plurality of trench openings and a plurality of via openings followed by the process of depositing a liquid photoresist material into the plurality of trench openings and plating a conductive metal into the plurality of via openings to form via plugs. After the dry film photoresist layer is removed, an encapsulant layer is printed on top of the wafer to embed the protrusions formed by the liquid photoresist material and the via plugs.
摘要:
A reusable burn-in/test fixture for discrete die consists of two halves. The first half of the test fixture contains cavity in which die is inserted. When the two halves are assembled, the fixture establishes electrical contact with the die and with a burn-in oven. The test fixture need not be opened until the burn-in and electrical test are completed. The fixture permits the die to be characterized prior to assembly.
摘要:
This invention creates a high speed semiconductor interconnect system which contains a plurality of signal traces, each in a flexible printed circuit, and each adhesively sandwiched between or adjacent to a flexible ground circuit and a flexible power circuit. The signal, power and ground circuits are stacked in multilayers and are connected to respective lead fingers and respective die circuits by standard, known methods such as TAB or wire bond and encapsulated in a known way. The ground plane and power plane being adjacent to the signal plane reduces the power-ground loop inductance and thus reduces the package noise. By reducing the inductance, the circuit can have a shorter switching time. Also, by adding the ground plane, the power-ground capacitance is increased, which serves to reduce the effect of power supply fluctuations in the system.